forked from mirrors/gecko-dev
145 lines
4 KiB
C++
145 lines
4 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "AnimationUtils.h"
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#include "mozilla/dom/Animation.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/KeyframeEffect.h"
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#include "mozilla/EffectSet.h"
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#include "nsDebug.h"
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#include "nsAtom.h"
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#include "nsIContent.h"
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#include "nsLayoutUtils.h"
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#include "nsGlobalWindowInner.h"
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#include "nsString.h"
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#include "xpcpublic.h" // For xpc::NativeGlobal
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using namespace mozilla::dom;
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namespace mozilla {
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/* static */
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void AnimationUtils::LogAsyncAnimationFailure(nsCString& aMessage,
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const nsIContent* aContent) {
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if (aContent) {
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aMessage.AppendLiteral(" [");
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aMessage.Append(nsAtomCString(aContent->NodeInfo()->NameAtom()));
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nsAtom* id = aContent->GetID();
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if (id) {
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aMessage.AppendLiteral(" with id '");
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aMessage.Append(nsAtomCString(aContent->GetID()));
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aMessage.Append('\'');
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}
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aMessage.Append(']');
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}
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aMessage.Append('\n');
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printf_stderr("%s", aMessage.get());
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}
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/* static */
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Document* AnimationUtils::GetCurrentRealmDocument(JSContext* aCx) {
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nsGlobalWindowInner* win = xpc::CurrentWindowOrNull(aCx);
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if (!win) {
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return nullptr;
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}
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return win->GetDoc();
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}
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/* static */
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Document* AnimationUtils::GetDocumentFromGlobal(JSObject* aGlobalObject) {
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nsGlobalWindowInner* win = xpc::WindowOrNull(aGlobalObject);
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if (!win) {
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return nullptr;
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}
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return win->GetDoc();
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}
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/* static */
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bool AnimationUtils::FrameHasAnimatedScale(const nsIFrame* aFrame) {
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EffectSet* effectSet = EffectSet::GetForFrame(
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aFrame, nsCSSPropertyIDSet::TransformLikeProperties());
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if (!effectSet) {
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return false;
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}
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for (const dom::KeyframeEffect* effect : *effectSet) {
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if (effect->ContainsAnimatedScale(aFrame)) {
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return true;
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}
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}
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return false;
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}
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/* static */
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bool AnimationUtils::HasCurrentTransitions(const Element* aElement,
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PseudoStyleType aPseudoType) {
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MOZ_ASSERT(aElement);
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EffectSet* effectSet = EffectSet::Get(aElement, aPseudoType);
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if (!effectSet) {
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return false;
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}
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for (const dom::KeyframeEffect* effect : *effectSet) {
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// If |effect| is current, it must have an associated Animation
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// so we don't need to null-check the result of GetAnimation().
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if (effect->IsCurrent() && effect->GetAnimation()->AsCSSTransition()) {
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return true;
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}
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}
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return false;
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}
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/*static*/ Element* AnimationUtils::GetElementForRestyle(
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Element* aElement, PseudoStyleType aPseudoType) {
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if (aPseudoType == PseudoStyleType::NotPseudo) {
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return aElement;
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}
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if (aPseudoType == PseudoStyleType::before) {
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return nsLayoutUtils::GetBeforePseudo(aElement);
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}
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if (aPseudoType == PseudoStyleType::after) {
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return nsLayoutUtils::GetAfterPseudo(aElement);
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}
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if (aPseudoType == PseudoStyleType::marker) {
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return nsLayoutUtils::GetMarkerPseudo(aElement);
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}
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MOZ_ASSERT_UNREACHABLE(
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"Should not try to get the element to restyle for a pseudo other that "
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":before, :after or ::marker");
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return nullptr;
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}
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/*static*/ std::pair<const Element*, PseudoStyleType>
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AnimationUtils::GetElementPseudoPair(const Element* aElementOrPseudo) {
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MOZ_ASSERT(aElementOrPseudo);
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if (aElementOrPseudo->IsGeneratedContentContainerForBefore()) {
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return {aElementOrPseudo->GetParent()->AsElement(),
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PseudoStyleType::before};
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}
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if (aElementOrPseudo->IsGeneratedContentContainerForAfter()) {
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return {aElementOrPseudo->GetParent()->AsElement(), PseudoStyleType::after};
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}
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if (aElementOrPseudo->IsGeneratedContentContainerForMarker()) {
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return {aElementOrPseudo->GetParent()->AsElement(),
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PseudoStyleType::marker};
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}
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return {aElementOrPseudo, PseudoStyleType::NotPseudo};
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}
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} // namespace mozilla
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